Conversely -
Japanese Armor-makers for the Samurai says;
家則 Hitachi 1532-1554 A skilled maker
The genealogy of the Saotome lists Ienori as the brother of the founder Nobuyasu. Since the existence of Nobuyasu cannot be confirmed, this relationship is questionable but Ienori would appear to be one of the first members of the Saotome group.
家則 Hitachi 1789-1800 A skilled maker
There were probably two Saotome working during the late Edo period using the name Ienori. Surviving examples of the workmanship of this Ienori reveal two distinct styles of workmanship.